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What types of Air Cooler are there?

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What types of Air Cooler are there?

Air Coolers can be divided into Power Plant Air Coolers and Petrochemical Air Coolers depending on the application and can be divided into Dry, Wet, and Combined Dry-Wet Air Coolers depending on the cooling method. Here are some answers.

Here is the content list:

Wet Air Cooler

Dry Air Cooler

Combined dry and wet Air Cooler

Wet Air Cooler

Wet Air Coolers can be divided into three types, surface evaporation, humidification, and spraying, depending on the method of water spraying, the latter two being the main types in the petrochemical industry. The surface evaporation type Air Cooler is an air-cooling unit consisting of a light tube that uses the evaporation of the water film outside the tube to enhance heat transfer. The humidified wet type Commercial Air Cooler is only suitable for dry, hot areas where the relative humidity is less than 50%, because the lower the relative humidity of the dry air, the more it cools down after humidification and the more significant the cooling effect. At the same time, the presence of water mist can make the Air Cooler inlet air temperature close to the ambient wet bulb temperature, which increases the average heat transfer temperature difference and increases the heat transfer coefficient by 2 to 4 times compared to the dry Air Cooler at 3% spray volume.

In summary, the use of wet Air Coolers is more beneficial than dry Air Coolers during the hot summer months when ambient temperatures are high. However, the wet Air Cooler is more prone to scaling when the fluid temperature inside the tube exceeds 70°C and the air resistance loss outside the tube is higher, about 1.4 times that of the dry Air Cooler. The tube bundle area cannot be too large, so the relative area of the unit is small and the price is relatively high.

Dry Air Cooler

The dry Air Cooler relies solely on the sensible heat of air temperature rise to exchange heat, relying on finned tubes and fan-forced circulation to enhance heat transfer. It is simple to operate and easy to use, but as its cooling temperature depends on the dry-bulb temperature of the air, it can generally only cool the thermal fluid inside the tube to 15 to 20°C above the ambient temperature. From a heat transfer point of view, the specific heat of air is only one-quarter of that of water and the density of air is much less than that of water.

Combined dry and wet Air Cooler

The combined dry-wet Air Cooler is a combination of a dry Air Cooler and a wet Air Cooler. The general principle of the combination is that a dry Air Cooler is used in the high-temperature zone of the process fluid to act as a gas condenser, while a wet Air Cooler is used in the low-temperature zone to act as a condensate cooler. In short, the choice of which form of Home Table Air Cooling Fan to use depends on the local atmospheric temperature, wind speed, relative humidity, and other environmental and climatic conditions, combined with the final cooling temperature of the medium and other heat transfer process requirements, and taking into account the economy, to make a comprehensive consideration to determine.

Our official website is https://www.helenbo.com/. If you work with Air Cooler or would like to know more about our company, you can talk to us on the website. We will be happy to provide more and better services with high-quality Air Cooler products, good services, and competitive prices!


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